Antitip-over device for bob-sleighs.



No. 818,544. PATENTED APR. 24,1906.

R. LOHDA.

ANTI TIP OVER DEVICE FOR BOB SLEIGHS.

APPLICATION FILED MAYB, 1905.

T16 5. ImlHll l 1 I It; 1:1 [3| 1mm urrnn s'rarns Parana orrrc ROBERTLOHDA, OF FORT ATKINSON, WISCONSIN, ASSIGNOR TO NORTHWESTERNMANUFACTURING COMPANY, OF FORT ATKIN- SON, WISCONSIN, A CORPORATION OFWISCONSIN.

ANTlTlP-OVER DEVICE FOR BOB-SLEEGHS.

Specification of Letters Patent.

Patented April 24, 1906.

Application filed May 8, 1905. Serial No. 2591260! To all whom it mayconcern:

Be it known that I, ROBERT LOHDA, residing in Fort Atkinson, in thecounty of J efferson and State of Wisconsin, have invented new anduseful Improvements in Antitip- Over Devices for Bob-Sleighs, of whichthe following is a description, reference being had to the accompanyingdrawings, Which are a part of this specification.

My invention has relation to an antitipover device for bob-sleighs.

In the form of sleighs known as bobsleighs the front and rear bobs areloosely jointed together, and in use if the front bob is turned at anangle to the rear bob the front bolster is caused to assume a positionacross the longitudinal plane of the front supporting-bar of the frontbob, and if there is any excess weight on the projecting end of thefront bolster the said bolster is caused to tilt, and this tilting isfrequently communicated to the front ends of the runners and to thetongue, causing anupward tilting of these arts.

It is the primary object of my invention to provide an improvedconstruction of device to prevent the above-pointed-out objections; andwith this object in view the invention consists of the devices and partsor their equivalents, as hereinafter set forth.

In the accompanying drawings, Figure 1 is a plan view of my invention,showing its application to the front bob of an ordinary form ofbob-sleigh. Fig. 2 is a longitudinal section on the line 2 2 of Fig. 1.Fig. 3 is a de tail view of the circle looking against the rear portionof said circle, and Fig. 4 is a view of a fragment of the frontcross-bar and of the rear end of the tongue mortised or secured to saidbar.

The drawings illustrate a front bob of ordinary construction, consistingof runners 5 5, the knees or brackets 6 6, bolted to the runners, andthe transverse supporting-bar .7, which is bolted at its opposite endsto the knees or brackets. The front ends of the runners are connected,as usual, by means of the front cross-bar 8, and to which bar the rearend of the tongue 9 is connected.

Referring particularly to my improvements, the numeral 10 indicates acircle, consisting of a complete circular band or ring. This circle isrigidly secured to the transverse supporting-bar, preferably by means ofan gular plates 11 11, the horizontal portions of said plates beingbolted to the supportingbar and passing beneath the circle, the uprightportions of said plates lying adjacent to diametrically opposite pointsof the inner face of the circle and secured thereto by means of rivets.In this manner the circle is firmly secured against lateral movementupon the transverse supporting-bar 7. The said transverse supporting-baris provided centrally with an opening 12 for the kingbolt. (Not shown.)Loosely mountedupon the upper end of this king-bolt is the turnablemember or fifthwheel, (not shown) which is carried at the forward end ofthe reach of the rear bob.

The rear end of the tongue 9 preferably projects slightly beyond thefront connectingbar 8, and this projecting end has extending upwardlyfrom its upper side an eye 13, said ey'e being preferably formed at theupper end of an eyebolt 14:, which bolt passes through the tongue andhas its lower end threaded to receive a nut 15, which is turned uptightly against the under side of the tongue. The eyebolt may passthrough a washer 16, and this washer may either bear directly againstthe top surface of the tongue or against a wear-plate 17, interposedbetween the washer and the top surface of the tongue. The eye 13 extendssufficiently high to receive loosely therethrough the forwardslightly-upturned end of a straight finger 18. This finger is split ordiverged from a point a suitable distance back of its forward end toform two members 19 19, which extend rearwardly and lie adjacent andconform to the arc of the circle 10 and are rigid therewith by means ofrivets or otherwise.

From the construction described it will be seen that I provide a simpleand convenient device for preventing tilting of the front bolster andthe uptilting of the tongue and forward ends of the runners, this beingaccomplished by reason of the fact that the finger 18 passes looselythrough, and therefore has play in, the eye 13, which has the effect ofresisting the tendency of the tilting referred to, and which tilting maybe due to excess weight exerted on the end of the front bolster when thefront bob is turned at an angle to said bolster or due to other causes.

By referring to Fig. 2 it will be noticed that by extending the end ofthe tongue rearward I am enabled to use a short finger 18 of simpleconstruction and that the tops of the circle 10 and arms 19 aremaintained in a horizontal plane, so that a broad extended support forthe load is provided and the front ends of the runners may rise overinequalities or obstructions without causing the tongue and finger tobind and injure one or the other. Were the finger bent down to engageunder the cross-bar, the finger would be weaker, the cost greater, and adownward movement of the rear end of the tongue would be apt to breakthe finger. Furthermore, the front cross-bar 8 is left intact, so thatthe strength of the same is not impaired.

What I claim as my invention is In a sleigh, the combination of therunners, a cross-bar connecting the front ends of the runners, a tonguesecured upon said cross-

